#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int main(void)
{
    char c;
    c = getchar();
    if (c >= 'a' && c <= 'u')
        c = c + 5;
    else
        c = 'a' + 5 - ('z' - c + 1);
    putchar(c);
    return 0;
}